GoPro Firmware Engineer interview questions

I have applied in the GoPro Careers website and within a day, I got an E-Mail from recruiter to schedule telephone call. I was interviewed by the Director of Firmware, I was asked to explain about my previous experience, tough project and tough issue faced. Though I have not included the flight control systems in my Resume, my profile matched 70% of job requirements, hope this is the reason I got a call, but the Director himself told over the call that he was looking a guy with the flight control systems background. Finally, I was told that they will keep my resume and if anything perfectly matches with my skills they will consider :) most of the calls end like this. I was not sure if GoPro wanted Engineer specific to flight control systems, then why did they select a resume where they do not see it as included in the skills.